The actress will reprise her role as Princess Leia in the upcoming, highly anticipated film Star Wars: Episode VII, and she didn't waste any time getting into shape for the movie. In fact, Fisher has already lost 40 pounds since being cast in the flick!

"She's very excited about it," mom Debbie Reynolds tells Mario Lopez on Extra. "She's been on a diet ever since because you know they have to be up to par, so she looks terrific. She's lost 40 pounds. She's very excited, as we all are, because we all love Star Wars."

Last year, Fisher told the Calgary Herald, "I'm glad they are doing a new movie because they are sending a trainer to my house so I can get in really good shape.So I'm really eating a lot of sugar in advance, as you can see. By the time I really get down to it I will have eaten everything."

The 57-year-old star will be reunited with Harrison Ford (Han Solo) and Mark Hamill (Luke Skywalker), along with a number of newcomers, in the J.J. Abrams-directed Episode VII, which is slated for a December 2015 release date and reportedly has a working title of Star Wars: Episode VII - The Ancient Fear.

"We are so excited to finally share the cast of Star Wars: Episode VII," Abrams said in a statement. "It is both thrilling and surreal to watch the beloved original cast and these brilliant new performers come together to bring this world to life, once again. We start shooting in a couple of weeks, and everyone is doing their best to make the fans proud."